Robert H. ALLEN

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Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Skate sharpening squaring device and method of use
- Patent number 8,888,567
- Issue date Nov 18, 2014
- Robert H. Allen
- B24 - GRINDING POLISHING
Information Patent Grant
Skate sharpening holder, skate blade, and method of use
- Patent number 8,827,768
- Issue date Sep 9, 2014
- Robert H. Allen
- B24 - GRINDING POLISHING
Information Patent Grant
Method and device for measuring squareness of ice skate blades
- Patent number 5,345,688
- Issue date Sep 13, 1994
- Robert H. Allen
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Method and tool for finishing of sharpened skate blades
- Patent number 5,239,785
- Issue date Aug 31, 1993
- Robert H. Allen
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
STAKE SHARPENING HOLDER, SKATE BLADE, AND METHOD OF USE
- Publication number 20130344774
- Publication date Dec 26, 2013
- Robert H. ALLEN
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
SKATE SHARPENING SQUARING DEVICE AND METHOD OF USE
- Publication number 20120315832
- Publication date Dec 13, 2012
- Robert H. ALLEN
- B24 - GRINDING POLISHING